Moscow Technical University of Communications and Informatics

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Bankov S.E.,RAS Institute of Radio Engineering and Electronics | Skorodumova E.A.,Moscow Technical University of Communications and Informatics
Journal of Communications Technology and Electronics | Year: 2015

The problem of the eigenmodes of an infinite 2D array of slot transmission lines operating in the quasi-periodic mode is solved. The boundary-value problem is reduced to a system of integral equations for longitudinal components of the electric current on metal conductors and the magnetic current in slots. The system of integral equation is solved in the static approximation at the first stage and, afterwards, the solution to the electromagnetic problem is found using the Galerkin method. The results of the numerical analysis of the dependences of eigenmode propagation constants on geometric parameters of the structure and phase shifts between the array channels are analyzed. © 2015, Pleiades Publishing, Inc.


Kyurkchan A.G.,Moscow Technical University of Communications and Informatics | Manenkov S.A.,Moscow Technical University of Communications and Informatics
Journal of Communications Technology and Electronics | Year: 2012

A new version of the modified discrete source method is proposed for the solution of the problem of diffraction by a group of coaxial impedance bodies of revolution. It is shown that the proposed method makes it possible to develop efficient algorithms for solving these problems for extremely prolate and extremely oblate scatterers as well as toroidal bodies of revolution. Numerical results for bodies of various geometries are presented, and the high accuracy of the obtained results is demonstrated. © Pleiades Publishing, Inc., 2012.


Manenkov S.A.,Moscow Technical University of Communications and Informatics
Acoustical Physics | Year: 2014

A new version of the modified method of discrete sources is proposed for solving the scalar problem of diffraction by an impedance body of revolution. The proposed approach allows the construction of effective algorithms that solve the aforementioned problem for bodies of revolution of different shapes, including the scatterers with broken boundaries. Numerical results are presented for bodies with different geometries and the high accuracy of the results is demonstrated. © 2014 Pleiades Publishing, Ltd.


Manenkov S.A.,Moscow Technical University of Communications and Informatics
Acoustical Physics | Year: 2016

Using the discrete source method, we develop an algorithm for solving the three-dimensional problem of wave scattering by a plane grating consisting of acoustically soft or acoustically stiff bodies. An efficient algorithm is proposed for determining the periodic Green’s function of the grating. Numerical results are obtained for different geometries of the grating elements. The fulfillment of the energy conservation law is verified along with the fulfillment of the boundary condition at the surface of the central grating element. © 2016, Pleiades Publishing, Ltd.


Kyurkchan A.G.,Moscow Technical University of Communications and Informatics | Manenkov S.A.,Moscow Technical University of Communications and Informatics
Journal of Quantitative Spectroscopy and Radiative Transfer | Year: 2012

The problem of wave scattering by a magnetodielectric body of revolution is solved. A new version of modified method of discrete sources (MMDS) is offered. This version of MMDS is suitable both for strongly elongated or strongly flattened bodies and toroidal bodies. The method is tested by verification of the optical theorem and calculation of the residual of boundary condition at the scatterer surface. The angle dependences of the pattern for various geometries of the body cross-section are obtained. The check of the Ufimtsev theorem for flattened Chebyshev particle is fulfiled. © 2012 Elsevier Ltd.


Manenkov S.A.,Moscow Technical University of Communications and Informatics
Journal of Communications Technology and Electronics | Year: 2015

On the basis of the modified method of discrete sources two approaches are developed for the solution of the 3D problem of scattering by a plane grating of dielectric revolution bodies. An efficient algorithm of finding the periodic Green’s function of the grating is suggested. The proposed methods are compared. Numerical results for various geometries of the grating elements are obtained. The fulfillment of the energy conservation law is checked. © 2015, Pleiades Publishing, Inc.


Manenkov S.A.,Moscow Technical University of Communications and Informatics
Journal of Communications Technology and Electronics | Year: 2016

A new version of the modified method of discrete sources (MMDSs) is proposed for the solution of the 2D and 3D (vector) problems of diffraction of the point source field by a dielectric body. The case when the source is located at a small distance from a scatterer is considered. The method is tested for the example of the problem of diffraction of a point source field by an infinite dielectric cylinder and a dielectric sphere. It is shown that the discrepancy of the boundary conditions is substantially lower when the suggested variant of the MMDSs is used for various geometries of a scatterer. © 2016, Pleiades Publishing, Inc.


Kyurkchan A.G.,Moscow Technical University of Communications and Informatics | Smirnova N.I.,Moscow Technical University of Communications and Informatics
Journal of Communications Technology and Electronics | Year: 2014

The T-matrix method is modified with the use of a priori information on the analytic properties of a solution. It is shown that taking into account such information makes it possible to develop correct, effective, and universal algorithms for simulating scattering characteristics of bodies of a wide class of geometries including essentially non-Rayleigh bodies. © 2014 Pleiades Publishing, Inc.


Kuvshinov V.V.,Moscow Technical University of Communications and Informatics
CriMiCo 2014 - 2014 24th International Crimean Conference Microwave and Telecommunication Technology, Conference Proceedings | Year: 2014

The comparative analysis of the experimental fluctuation characteristics is provided for two identical coaxial ceramic resonator VCOs with different types of frequency tuning elements: Barium Strontium Titanate (BST) capacitor and varicap. © 2014 CriMiCo'2014 Organizing Committee, CrSTC.


Raitsin A.M.,Moscow Technical University of Communications and Informatics
Measurement Techniques | Year: 2013

The formulas for determining the width and diameter of a laser beam of the existing standard GOST R ISO 11146 - 2008 are refined using the Pearson two-dimensional distribution, which takes into account the limited nature of the dynamic range of the measuring instrument. © 2013 Springer Science+Business Media New York.

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